Vibrator



FIG. 1 is a front, top and right-side perspective view of a vibrator showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines in the drawings are for the purpose of illustrating portions of the vibrator which form no part of the claimed design. 

CLAIM The ornamental design for a vibrator, as shown and described. 